text: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #ifndef BASE64_H
  # define BASE64_H
  
  /* Get size_t. */
  # include <stddef.h>
  
  /* Get bool. */
  # include <stdbool.h>
  
  
  #ifdef __cplusplus
  namespace rocketmqSignature{
  #endif
  
  		/* This uses that the expression (n+(k-1))/k means the smallest
  			 integer >= n/k, i.e., the ceiling of n/k.  */
  # define BASE64_LENGTH(inlen) ((((inlen) + 2) / 3) * 4)
  
  extern bool isbase64(char ch);
  
  extern void base64_encode(const char *in, size_t inlen,
  	char *out, size_t outlen);
  
  extern size_t base64_encode_alloc(const char *in, size_t inlen, char **out);
  
  extern bool base64_decode(const char *in, size_t inlen,
  	char *out, size_t *outlen);
  
  extern bool base64_decode_alloc(const char *in, size_t inlen,
  	char **out, size_t *outlen);
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* BASE64_H */
  